>yes hilmar.
>
>Did you try to disable the Timer, at the beginning of its Timer() event?
>
>i'd like to continue notify my user of a new pdf file in the server then stop when they read the file. i actually have a way of knowing when they have read the file.
>
>i put a messagebox in timer but my problem is, if i do this, i will clog my user of messageboxes. i want to be able to find a way to close the messagebox before showing another messagebox.
>
>can i do this?

I don't know if I understand correctly: While the MessageBox() shows, the Timer continues executing every 20 minutes?

My idea to solve this is that in the Timer itself, in the Timer() event, you do something like this:

* Timer.Timer() Event
This.Enabled = .F.  && Disable Timer
MessageBox(...)     && Show message
This.Enabled = .T.  && Enable Timer again, after the user accepts

However, I don't know if I understood your problem correctly.

Greetings,

Hilmar.